| Business | Phone |
| Wind River Environmental 107 Forest St, Middleton 1949 | (978) 864-6767 |
| Currier Environmental Solution 107 Forest St, Middleton 1949 | (978) 774-7122 |
| Currier Septic & Drain Svc South Main St, Middleton 1949 | (978) 664-3476 |
| J's Septic & Drain 131 Forest St, Middleton 1949 | (978) 774-6685 |